Grade - math word problems - page 955 of 968
Number of problems found: 19341
- Chord
In a circle with radius r = 60 cm, there is a chord that is 4 times longer than its distance from the centre. What is the length of the chord? - Trigonometry
Is true equality? sin(x +13 π)= sin(x) - Trunk
Calculate the length of the longest fishing rod that can be placed in a car boot with dimensions 152 × 82 × 81 cm. - Box
Calculate the angle between the base of a cuboid with dimensions 5 × 10 and its space diagonal of length 13. - Observatory
An observatory dome has the shape of a hemisphere with diameter d = 10 m. Calculate its surface area. - Rotating cone II
Calculate the lateral surface area of a cone with base radius r = 20 cm and height h = 10 cm. - Rotating cone Calculate the volume of a rotating cone with base radius r=18 cm and height h=20 cm.
- Gold wire
A wire of length 1.4 km was drawn from one gram of gold. What is its diameter if the density of gold is ρ = 19.5 g/cm³? - Is right?
Is a triangle with sides 15, 66, and 68 a right triangle? - Education for free
Slovakia circulates a lot of myths, particularly ideas about what must be free. For example - education should be free - children of poor parents should know at least to read and write. Calculate how much a student would have to pay per hour of teaching w - Proof I
When the larger of two consecutive integers is added to the product of those two integers, the result is the square of the larger integer. Is this true? - Energy saving
Three independent inventions were released, each saving 15%, 17%, and 16% of energy respectively. Some people assumed that using all three would save 15% + 17% + 16% = 48% of energy. Is this correct? What is the actual total percentage of energy saved by - Date game
Let now is Tuesday. What day is after 229 days? Write the result as a number: 1=Monday, 2=Tuesday, 3=Wednesday, 4=Thursday, 5=Friday, 6=Saturday, 7=Sunday. - Average
The average of 5 numbers is 108. What is their sum? - Word
What is the probability that a random word composed of chars S, G, R, S, E, I, N, A, L, P, C, T, M, H, E, E will be the SPHERICALSEGMENT? - Bulbs
A box contains 16 bulbs of 75 W, 14 bulbs of 40 W, and 10 bulbs of 50 W. Calculate the probability that a randomly selected bulb is: a) 40 W b) 75 W or 40 W - Exponential equation
In the set R, solve the equation: 7 -5 +19x=4 3 -20x - Kitchen
A kitchen rolling pin has a diameter of 78 mm and a length of 315 mm. How many square millimetres of surface does it cover in one full rotation? - The angle of lines
Calculate the angle between the two lines y = x-8 and y = +12. - Gear wheels
Two meshing gear wheels have tooth counts of z₁ = 43 and z₂ = 154. Calculate the speed of the first wheel if the second wheel rotates at 766 revolutions per minute.
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